Bagging-machine.



A. M. BATES.

BIGGING MACHINE.

APPLICAT'ON FILED SEPT. 6. 1910.

Patented Apr. 27, 1915.

2 SHEETS-SHEET l.

7zfzesses:

A. M. BATES.

BAGGING MACHINE.

APPLICATION FILED SEPT. 6, 1910.

1,137,376. Patented Apr. 27, 1915.

Z SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

ADELMER M. BATES, OF CHICAGO, ILLINOIS, ASSIGNOR TO BATES VALVE BAG COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF WEST VIRGINIA.

BAGGING-MACHINE.

Specification of Letters Patent.

Patented Apr. 2'7, 1915.

Application filed September 6, 1910. Serial No. 580,716.

To all whom it may concern:

Be it known that I, ADELMER M. Barns, a citizen of the United States, residing at Chicago, .in the county of Cook and State of Illinois, have invented a certain new and v useful Improvement in Bagging-Machines,

of which the following is a specification.

My invention relates to improvements in bagging machines, and has for its object to provide an improved apparatus for filling valve' bags, and is based upon subject matter divided out of my co-pending application for bagging machines, No. 560,533, filed May 10, 1910.

It illustrated in one form in the accompanymg drawings,wherein Figure '1 is a front elevation of a portion of the machine; Fig. 2, a section along the line 22 of Fig. 1; Fig. 3, a detail section showing a mod1fication; Fig. 4 is an elevation showing a'detail of Fig. 3.

Like partsare indicate by like letters in all the res.

The end rames-A carry at their tops the parallel spaced channel irons A which form the backbone of tlie filling machine and at the same time form. the two' sidewalls of the feeding pocket A, which pocket is in i communication at its top with. the feeding so.

throat A in communication withthe supply hop r A and controlled by tli'ei rotary "at its bottom with the pro" ller pocket A er A mountedupon the' shaft A, and

containing the rotary prope er A' mounted upon the shaft A in oppositlonf the filling throat A" tube'A. It will be observed that the propeller pocket is in fact and effect a part of or a continuation of the feeding pocket, although for purposes of convenience in describing. the drawing I have given it a separate letter. The shaft A carries the driving ulley B and is provided with the pinion in mesh with the gear B which carries the pulley B and is rotatablymounted on the stud Bf. The pulley B carries the belt B to drive the pulley B upon the shaft A. The idler pulley B mounted upon the bell-crank lever B is in engagement with the belt B and held thereagainst by means of the weight B which'may be lifted to relieve the tension in the belt by means of the cord B" controlled by the 'handleBR The filling tube A is mounted upon the A-frame C which is supported at its bottom by any end pieces, thus taking the place of the channel bars A as the back bone of the machine. The feeding throat and propeller pocket are now in closer relation one to the other, there bein no intermediate. pocket between them, an the link 0 is now pivoted upon a portion of the hopper B rather than upon one of the channel bars A.

The use and operation of my invention are as follows :I provide a propeller pocket .in which rotates apropellerand from which leads the feeding throatbut in order that the flow of material through the feeding throat may be constant, I provide means for maintaining the pressure upon the material in the propeller pocket at a'constant point. This do by interposing in the connection between the supply hopper and the feeding pocket a rotary multiple pocket feeding de-,

vice/which rotates responsive to the rotation of the propeller and the rotation of which may bestopped at the will of the op erator to cut off the supply. This device not only. maintains the pressure of the material upon the propeller at a constant point but it materially reduces the pressure. Thisv is desirable because the materials, such as cement, which arerun through this machine and are kept in the storage or delivery bins exerts pressure much asdoes a column of Water. Since-the propeller travels at a very high' speed it is' desirable that this pressure be kept as low as possible in order to prevent heating of the material and the propeller.

This the feeder does since it se arates the bottom of the bin from the-props ler pocket, thus making the effective hei ht ofthe column of material equal to the istance be tween such feeder and the propeller. The feeder takes the form of a number of pockets in the periphery of a roll or cylinder, which rotates between curved walls. As it rotates the pockets are filled when in the supply bin and emptied when they reach the supply hopper. The feeder is driven from the same shaft that carries the rotary propeller and bears a fixed relation in its speed to the speed of the rotary propeller and may be disconnected from such shaft, whereupon the supply of material to the propeller will be interrupted and the propeller will revolve freely in its pocket, without being in contact with any of the material to be fed.

It will be evident that I have shown in my drawings an operative device, still many changes might be made in size, shape and arrangement of parts without departing materially from the spirit of my invention, and I wish, therefore, that mydrawings be regarded as in a sense diagrammatic.

It will be observed, therefore, that in my device the material flows downwardly under the force of gravity into the feeding pocket, being controlled in its flow thereto by the feed regulating cylinder, which cylinder is operated in unison with the propeller which is complete] in closed in the bottom of the feeding poc et. Thus the flow of material to the feeding pocket bears a direct and constant relation to the rapidity with which the material is discharged by the propeller therefrom.

Since my device is primarily designed to be used in connection with Yalveless bags,

which are ordinarily filled from one corner and supported from the filling tube, I have provided a horizontally disposed filling tube tangential to the propeller, and as the material passes through the machine it first falls under the influence of gravity in a substan tially vertical line to the propeller, by which it is violently projected in a horizontal digection out through the filling tube into the I claim 1. A bag filling machine comprising a supply bin, a mechanical feeding device at the bottom thereof, a feed hopper into which said feeding device discharges, a propeller located at the bottom of said hopper and a discharge tube leading therefrom, means for actuating said propeller and said feeding device in unison, and means for discontinuin the operation of said feeding device and said propeller, without interfering with the operation of the propeller.

2. A bag filling machine comprising a supply bin, a mechanical feed control device at the bottom and discharging from said bin, 8. small charge retaining hopper located beneath and fed by said feed control device, a propeller located at the bottom of said hopper, a discharge tube in line with and fed from said propeller, said propeller and said feeding device being normally driven in unison and means for disconnecting said feeding device and said propeller without interfering with the operation of the ropeller.

ADELMER BATES. Witnesses:

FRANCIS W. PARKER,'JI., SOPHIE B. WEMER. 

